Several posts on these forums recommends moving, renaming or deleting
~/.mozilla folder to solve Firefox issues. While this will certainly remove any corrupted Firefox profiles and thus solve many common issues, you should consider that the
~/.mozilla folder is also the place where other Mozilla applications might store their profiles (Sunbird, etc), so removing this folder will also remove their settings.
Firefox profiles are stored under
~/.mozilla/firefox or
~/.mozilla/firefox-x.y folders, where
x.y is the Firefox version. So if you need to remove a Firefox profile to fix a problem, then remove
~/.mozilla/firefox or
~/.mozilla/firefox-x.y not
~/.mozilla.
Nevertheless, there also no reason to delete the entire profile if you can pinpoint the culprit inside it. Most common Firefox issues can be traced back to a single profile file. So, if you can avoid removing the entire profile, you wil be able to preserve other settings like extensions, themes, bookmarks, cookies and passwords.
To fix this problem simply follow
Solution [
FOT002] from the Troubleshooting section of the
Firefox optimization and troubleshooting thread.
In some cases, several common issues might appear together as a result of wrong permissions of the ~/.mozilla folder. See
Solution [
FOT001] if this is the case.
To avoid similar problems in the future, follow the
Backup section of the same tutorial.
BTW, reinstalling Firefox usually does not help.
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